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Manual_RS485_SLIN_BIDE_EN.doc 5/7 

Baumer IVO GmbH & Co. KG 

04.05.11  

Villingen-Schwenningen, 

Germany 

3. SLIN protocol 

3.1. Technical 

data 

 

  bus interface according to RS485 

  linear bus topology 

  max. 8 bus users, selectable encoder address  

  standard transmission rates: 9.6 kBaud, 19.2 kBaud and 115.2 kBaud 

  bus access according to  master / slave communication  

  variable length of telegram 

  data transmission asynchronous and half-duplex 

  UART character format defined in line with IEC FT1.2 standard. 

  data backup by parity and checksum 

 

The physical bus is available to each user at a certain time only, since information might collide and become 
illegible when being transmitted by several users at the same time. Consequently, the chronological order in 
bus using time has to be regulated by bus access control. The SLIN protocol coordinates bus access 
according to the master/slave principle. Every bus activity of passive users (encoders) is launched by master 
(PLC, PC) using a control word. 
 
 
 

3.2. Data 

transmission 

 

1. Master request 

 

The control word comprises: 

  1 start bit 

  3 bits for the encoder address 

  1 control bit (low) master identifier 

  3 reserved bits (low) 

  1 control bit (high) control word identifier 

  1 parity bit, even parity 

  1 stop bit 

 

 

 
The slave shall only transmit a response telegram when authorised by the above illustrated master request. 
The encoder responds within 1 ms. 
 
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Содержание GXM7W SLIN

Страница 1: ...056 Villingen Schwenningen Phone 49 0 7720 942 0 Fax 49 0 7720 942 900 05 11 174 02 054 3 info de baumerivo com Subject to modification in technic and design www baumer com Errors and omissions except...

Страница 2: ...mbH Co KG 04 05 11 Villingen Schwenningen Germany Contents Page 1 Introduction 3 1 1 Scope of delivery 3 1 2 Product assignment 3 2 Safety and operating instructions 4 3 SLIN protocol 5 3 1 Technical...

Страница 3: ...cept any liability for direct or indirect damages resulting from the use of the present information At any time we should be pleased receiving your comments and proposals for further improvement of th...

Страница 4: ...l injury or damage to property Transport and storage Only ever transport or store encoders in their original packaging Never drop encoders or expose them to major vibrations Assembly Avoid impacts or...

Страница 5: ...me only since information might collide and become illegible when being transmitted by several users at the same time Consequently the chronological order in bus using time has to be regulated by bus...

Страница 6: ...bit low identification encoder position data 1 stop bit The above data words are being transmitted subsequently until no more relevant data are available 3 Encoder control byte footer word Following i...

Страница 7: ...ter word M_CHECK_SUM CLR C MOV A RESPONSE_SLIN_BYTE1 1 byte position data ADD A RESPONSE_SLIN_BYTE2 2 byte position data if relevant ADD A RESPONSE_SLIN_BYTE3 3 byte position data if relevant ADD A RE...

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